Dynamic Dropdowns in Safari

I have developed a webbased app that uses dynamic dropdowns that populate based on what the user chose in the previous dropdown. They are fired from a JQuery Onchange event and get populated with values from a mysql database. They seem to work fine on all devices and pc's exept those running IOS7. I found the issue out when I updataed my Iphone from IOS6 to IOS7. So they worked perfect for me before the update. The issue is when a user uses the next > arrow after scrolling and making their selection in the dropdown. IOS7 doesn't seem to fire the Onchange event unless you use the done button for each dropdown. Does anybody know of a way to make this work in IOS7?